Dispensing device for adhesive tape rolls



July 10, 1951 v. F. SLEZAK DISPENSING DEVICE FOR ADHESIVE TAPE ROLLS Filed April 5, 1950 INVENTOK Vina-en? FSZezak m mamm ATTORNEYS Patented July 10, 1951 UNITED STATES. PATENT OFFICE],

DISPENSING DEVICE FOR ADHESIVE TAPE ROLLS VincentE Slezak, Berwyn, Ill.

Application April 3, 1950, Serial No. 153,548

The invention relates to newl and .usefulimprovements-in a device for dispensing adhesive tape from a roll apdmore particularly to the arrangement of thetearing-means for the severing .of'the tape.

An object of the invention isrto provide .atape dispensing deviceehaving. a itearin edge, which device is adapted to be attached to the tape roll so that it can be readily shifted peripherally thereof toa position-permitting the tapeto be folded back -on itself -w-it-h-the adhesive face exposed during the stripping of the tape from the roll, and which may be shifted so as to place the tearing edge, across which the tape is to be drawn and severed, against the adhesive face of the folded back portion of the tape at a short distance from the fold therein so that when the tape is severed a released end portion will be provided adapted to be gripped for the next stripping operation.

In the drawings which show b way of illustration one embodiment of the invention,

Figure 1 is a side view of the improved tape dispensing device attached to a tape roll;

Figure 2 is a view similar to Figure 1 but showing the tearing edge of the dispensing device lifted from the roll to permit the released end of the tape to be gripped for stripping the tape from the roll;

Figure 3 is a view similar to Figure 2, but showing the tearing edge of the dispensing device as positioned so as to engage the adhesive face of the folded back strip of tape at a point a short distance from the fold;

Figure 4 i a view similar to Figure 3, but showing the tearing strip as in engagement with the adhesive face of the folded back tape preparatory to the severing of the same;

Figure 5 is a plan view of the tape dispensing device, and

Figure 6 is a sectional view on the line 6-6 of Figure 5.

The improved tape dispensing device includes a body plate I which is of a width substantially equal to the width of the tape roll to which it is applied. The body plate is provided with side members 2 and 3 formed integral therewith which project inwardly toward the center of the tape roll. These side members are curved inwardly to a slight extent so as to frictionally grip the side faces of the tape roll. Each side member is also turned outwardly as indicated at 44, so as to facilitate the placing of the dispensing device on the tape roll and permit the shifting of the tape dispensing device peripherally and radially of the roll.

l Claim. (Ol.'164s84.5)

2 The central portionof said body plate I is substantially fiat and the forward end portion-5 is bent downwardly toward the tape roll at an obtuse angle to said'central portion andterminates in a serrated tearing edge 6 across-which'the-tape may be drawn for severing, said body plate portion at the rear-end-:bein curvedupwardlysubstantially tangentially to said central portion as indicated at 8 to provide a-shifting fulcrum for the plate. The body plate where it joins the downwardly turnedportion is recessed as indicated at I, I for giving rigidity to the turned down portion.

The side members 2 and 3 are cut away directly beneath the central portion of the body plate I as indicated at 99. The purpose of the cutting away of the body plate and side members is to permit contact with the roll during the shifting of the dispensing device from one set position to another depending upon the length of the tape stripped from the roll. The tape roll to which the dispensing device is attached is indicated at II! and a portion of tape which is being stripped from the roll is indicated at I i.

It will be noted from Figure 2 that there is a released portion I2 of the tape which may be gripped and the tape stripped from the roll to the desired extent. The dispensing device is placed on the roll in advance of the free edge thereof and then shifted, as shown in Figure 3, to a position where the downwardly extending portion 5 of the body plate is above the adhesive face of the turned back portion II of the tape. This turned back portion of the tape provides a fold I3 and the adhesive face of the tape faces outwardly. The dispensing device is then turned on its curved fulcrum contact with the roll to the position indicated in Figure 4 wherein the tearing edge of the dispensing device is placed in contact with the adhesive face of the tape being stripped from the roll and this contact is at a short distance from the fold formed by the stripping of the tape. As a consequence, when the tape is drawn across the tearing edge for severing the same there will be left a released edge portion I2 which extends from the torn edge of the tape to the fold formed in the tape. This distance is arbitrary except that it should be sulficient to permit the tape to be grasped by the thumb and finger, as shown in Figure 2, for the next stripping operation. The dispensing device is pressed upon at the rear to move it away from its tearing position so as to permit the grasping of this released edge. During the tearing operation the body plate may be pressed upon by the operator and thus the tearing edge held firmly placed against the tape during the drawing of the tape across the edge and the severing of the same.

The tearing edge of the dispensing device contacts with the adhesive face in a very limited region and when it is lifted after the strip has been severed it will automatically pull the released end outwardly away from the tape roll for gripping purposes and then automatically disconnect itself by the further movement of the tearing edge away from the tape roll.

It has already been noted that the turned back portion of the tape which exposes the adhesive face is torn across at a comparatively short distance from the fold in th tape. This adhesive face is not only short but is covered by the dispensing device and this acts as a cover for the adhesive face and prevents the drying out of the end of the tape. In most of the existing tape dispensing devices there is necessarily quite a long section of tape between the roll and the tearing device which must be torn off and thrown away.

It is obvious that minor changes in the details of construction may be made without departing from the spirit of the invention as set forth in the appended claim.

I claim:

An adhesive tape dispensing device comprising a body plate having a width equal to at least the width of the tape roll and side members formed integral with the body plate and projecting inwardly toward the center of the tape roll, said 4 side members being shaped so as to frictionally grip the sides of the tape roll for holding the device in engagement with the roll while permitting the same to be freely shifted peripherally of the tape roll, the central portion of said body plate being substantially fiat and the forward end portion being bent downwardly toward the tape roll at an obtuse angle to said central portion and terminating in a serrated tearing edge across which the tape may be drawn for severing, the rear end portion of said body plate being curved upwardly substantially tangentially to said central portion to provide a shifting fulcrum for the plate, said device for tearing purposes being placed no the roll in advance of the folded back edge of the tape formed during stripping the tape from the roll and adapted to engage the adhesive face of the folded back portion at a point spaced from the fold so as to provide a released end portion adapted to be gripped for the next stripping operation.

VINCENT F. SLEZAK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 2,272,628 Anderson Feb. 10, 1942 2,423,004 Butler June 24, 1947 

